Added iterators to ImmutableSet.
[oota-llvm.git] / include / llvm / Intrinsics.td
1 //===- Intrinsics.td - Defines all LLVM intrinsics ---------*- tablegen -*-===//
2 // 
3 //                     The LLVM Compiler Infrastructure
4 //
5 // This file was developed by Chris Lattner and is distributed under the
6 // University of Illinois Open Source License. See LICENSE.TXT for details.
7 // 
8 //===----------------------------------------------------------------------===//
9 //
10 // This file defines properties of all LLVM intrinsics.
11 //
12 //===----------------------------------------------------------------------===//
13
14 include "llvm/CodeGen/ValueTypes.td"
15
16 //===----------------------------------------------------------------------===//
17 //  Properties we keep track of for intrinsics.
18 //===----------------------------------------------------------------------===//
19
20 class IntrinsicProperty;
21
22 // Intr*Mem - Memory properties.  An intrinsic is allowed to have exactly one of
23 // these properties set.  They are listed from the most aggressive (best to use
24 // if correct) to the least aggressive.  If no property is set, the worst case 
25 // is assumed (IntrWriteMem).
26
27 // IntrNoMem - The intrinsic does not access memory or have any other side
28 // effects.  It may be CSE'd deleted if dead, etc.
29 def IntrNoMem : IntrinsicProperty;
30
31 // IntrReadArgMem - This intrinsic reads only from memory that one of its
32 // arguments points to, but may read an unspecified amount.
33 def IntrReadArgMem : IntrinsicProperty;
34
35 // IntrReadMem - This intrinsic reads from unspecified memory, so it cannot be
36 // moved across stores.  However, it can be reordered otherwise and can be
37 // deleted if dead.
38 def IntrReadMem : IntrinsicProperty;
39
40 // IntrWriteArgMem - This intrinsic reads and writes only from memory that one
41 // of its arguments points to, but may access an unspecified amount.  It has no
42 // other side effects.  This may only be used if the intrinsic doesn't "capture"
43 // the argument pointer (e.g. storing it someplace).
44 def IntrWriteArgMem : IntrinsicProperty;
45
46 // IntrWriteMem - This intrinsic may read or modify unspecified memory or has 
47 // other side effects.  It cannot be modified by the optimizer.  This is the
48 // default if the intrinsic has no other Intr*Mem property.
49 def IntrWriteMem : IntrinsicProperty;
50
51 //===----------------------------------------------------------------------===//
52 // Types used by intrinsics.
53 //===----------------------------------------------------------------------===//
54
55 class LLVMType<ValueType vt> {
56   ValueType VT = vt;
57 }
58
59 class LLVMPointerType<LLVMType elty>
60   : LLVMType<iPTR>{
61   LLVMType ElTy = elty;
62
63
64 class LLVMMatchType<int num>
65   : LLVMType<OtherVT>{
66   int Number = num;
67
68
69 def llvm_void_ty       : LLVMType<isVoid>;
70 def llvm_anyint_ty     : LLVMType<iAny>;
71 def llvm_anyfloat_ty   : LLVMType<fAny>;
72 def llvm_i1_ty         : LLVMType<i1>;
73 def llvm_i8_ty         : LLVMType<i8>;
74 def llvm_i16_ty        : LLVMType<i16>;
75 def llvm_i32_ty        : LLVMType<i32>;
76 def llvm_i64_ty        : LLVMType<i64>;
77 def llvm_float_ty      : LLVMType<f32>;
78 def llvm_double_ty     : LLVMType<f64>;
79 def llvm_f80_ty        : LLVMType<f80>;
80 def llvm_f128_ty       : LLVMType<f128>;
81 def llvm_ppcf128_ty    : LLVMType<ppcf128>;
82 def llvm_ptr_ty        : LLVMPointerType<llvm_i8_ty>;             // i8*
83 def llvm_ptrptr_ty     : LLVMPointerType<llvm_ptr_ty>;            // i8**
84 def llvm_empty_ty      : LLVMType<OtherVT>;                       // { }
85 def llvm_descriptor_ty : LLVMPointerType<llvm_empty_ty>;          // { }*
86
87 def llvm_v16i8_ty      : LLVMType<v16i8>;    // 16 x i8
88 def llvm_v8i16_ty      : LLVMType<v8i16>;    //  8 x i16
89 def llvm_v2i64_ty      : LLVMType<v2i64>;    //  2 x i64
90 def llvm_v2i32_ty      : LLVMType<v2i32>;    //  2 x i32
91 def llvm_v1i64_ty      : LLVMType<v1i64>;    //  1 x i64
92 def llvm_v4i32_ty      : LLVMType<v4i32>;    //  4 x i32
93 def llvm_v4f32_ty      : LLVMType<v4f32>;    //  4 x float
94 def llvm_v2f64_ty      : LLVMType<v2f64>;    //  2 x double
95
96 // MMX Vector Types
97 def llvm_v8i8_ty       : LLVMType<v8i8>;     //  8 x i8
98 def llvm_v4i16_ty      : LLVMType<v4i16>;    //  4 x i16
99
100 def llvm_vararg_ty     : LLVMType<isVoid>;   // this means vararg here
101
102 //===----------------------------------------------------------------------===//
103 // Intrinsic Definitions.
104 //===----------------------------------------------------------------------===//
105
106 // Intrinsic class - This is used to define one LLVM intrinsic.  The name of the
107 // intrinsic definition should start with "int_", then match the LLVM intrinsic
108 // name with the "llvm." prefix removed, and all "."s turned into "_"s.  For
109 // example, llvm.bswap.i16 -> int_bswap_i16.
110 //
111 //  * Types is a list containing the return type and the argument types
112 //    expected for the intrinsic.
113 //  * Properties can be set to describe the behavior of the intrinsic.
114 //
115 class Intrinsic<list<LLVMType> types,
116                 list<IntrinsicProperty> properties = [],
117                 string name = ""> {
118   string LLVMName = name;
119   string TargetPrefix = "";   // Set to a prefix for target-specific intrinsics.
120   list<LLVMType> Types = types;
121   list<IntrinsicProperty> Properties = properties;
122 }
123
124 /// GCCBuiltin - If this intrinsic exactly corresponds to a GCC builtin, this
125 /// specifies the name of the builtin.  This provides automatic CBE and CFE
126 /// support.
127 class GCCBuiltin<string name> {
128   string GCCBuiltinName = name;
129 }
130
131
132 //===--------------- Variable Argument Handling Intrinsics ----------------===//
133 //  
134
135 def int_vastart : Intrinsic<[llvm_void_ty, llvm_ptr_ty], [], "llvm.va_start">;
136 def int_vacopy  : Intrinsic<[llvm_void_ty, llvm_ptr_ty, llvm_ptr_ty], [],
137                             "llvm.va_copy">;
138 def int_vaend   : Intrinsic<[llvm_void_ty, llvm_ptr_ty], [], "llvm.va_end">;
139
140 //===------------------- Garbage Collection Intrinsics --------------------===//
141 //  
142 def int_gcroot  : Intrinsic<[llvm_void_ty, llvm_ptrptr_ty, llvm_ptr_ty]>;
143 def int_gcread  : Intrinsic<[llvm_ptr_ty, llvm_ptr_ty, llvm_ptrptr_ty],
144                             [IntrReadArgMem]>;
145 def int_gcwrite : Intrinsic<[llvm_void_ty, llvm_ptr_ty, llvm_ptr_ty,
146                              llvm_ptrptr_ty], [IntrWriteArgMem]>;
147
148 //===--------------------- Code Generator Intrinsics ----------------------===//
149 //  
150 def int_returnaddress : Intrinsic<[llvm_ptr_ty, llvm_i32_ty], [IntrNoMem]>;
151 def int_frameaddress  : Intrinsic<[llvm_ptr_ty, llvm_i32_ty], [IntrNoMem]>;
152 def int_stacksave     : Intrinsic<[llvm_ptr_ty], [IntrReadMem]>,
153                         GCCBuiltin<"__builtin_stack_save">;
154 def int_stackrestore  : Intrinsic<[llvm_void_ty, llvm_ptr_ty]>,
155                         GCCBuiltin<"__builtin_stack_restore">;
156 // IntrWriteArgMem is more pessimistic than strictly necessary for prefetch,
157 // however it does conveniently prevent the prefetch from being reordered
158 // with respect to nearby accesses to the same memory.
159 def int_prefetch      : Intrinsic<[llvm_void_ty, llvm_ptr_ty, 
160                                    llvm_i32_ty, llvm_i32_ty],
161                                   [IntrWriteArgMem]>;
162 def int_pcmarker      : Intrinsic<[llvm_void_ty, llvm_i32_ty]>;
163
164 def int_readcyclecounter : Intrinsic<[llvm_i64_ty]>;
165
166 //===------------------- Standard C Library Intrinsics --------------------===//
167 //
168
169 let Properties = [IntrWriteArgMem] in {
170   def int_memcpy_i32  : Intrinsic<[llvm_void_ty, llvm_ptr_ty, llvm_ptr_ty,
171                                    llvm_i32_ty, llvm_i32_ty]>;
172   def int_memcpy_i64  : Intrinsic<[llvm_void_ty, llvm_ptr_ty, llvm_ptr_ty,
173                                    llvm_i64_ty, llvm_i32_ty]>;
174   def int_memmove_i32 : Intrinsic<[llvm_void_ty, llvm_ptr_ty, llvm_ptr_ty,
175                                    llvm_i32_ty, llvm_i32_ty]>;
176   def int_memmove_i64 : Intrinsic<[llvm_void_ty, llvm_ptr_ty, llvm_ptr_ty,
177                                    llvm_i64_ty, llvm_i32_ty]>;
178   def int_memset_i32  : Intrinsic<[llvm_void_ty, llvm_ptr_ty, llvm_i8_ty,
179                                    llvm_i32_ty, llvm_i32_ty]>;
180   def int_memset_i64  : Intrinsic<[llvm_void_ty, llvm_ptr_ty, llvm_i8_ty,
181                                    llvm_i64_ty, llvm_i32_ty]>;
182 }
183
184 let Properties = [IntrNoMem] in {
185   def int_sqrt : Intrinsic<[llvm_anyfloat_ty, LLVMMatchType<0>]>;
186   def int_powi : Intrinsic<[llvm_anyfloat_ty, LLVMMatchType<0>, llvm_i32_ty]>;
187 }
188
189 // NOTE: these are internal interfaces.
190 def int_setjmp     : Intrinsic<[llvm_i32_ty , llvm_ptr_ty]>;
191 def int_longjmp    : Intrinsic<[llvm_void_ty, llvm_ptr_ty, llvm_i32_ty]>;
192 def int_sigsetjmp  : Intrinsic<[llvm_i32_ty , llvm_ptr_ty, llvm_i32_ty]>;
193 def int_siglongjmp : Intrinsic<[llvm_void_ty, llvm_ptr_ty, llvm_i32_ty]>;
194
195 //===-------------------- Bit Manipulation Intrinsics ---------------------===//
196 //
197
198 // None of these intrinsics accesses memory at all.
199 let Properties = [IntrNoMem] in {
200   def int_bswap: Intrinsic<[llvm_anyint_ty, LLVMMatchType<0>]>;
201   def int_ctpop: Intrinsic<[llvm_anyint_ty, LLVMMatchType<0>]>;
202   def int_ctlz : Intrinsic<[llvm_anyint_ty, LLVMMatchType<0>]>;
203   def int_cttz : Intrinsic<[llvm_anyint_ty, LLVMMatchType<0>]>;
204   def int_part_select : 
205      Intrinsic<[llvm_anyint_ty, LLVMMatchType<0>, llvm_i32_ty, llvm_i32_ty]>;
206   def int_part_set :
207      Intrinsic<[llvm_anyint_ty, LLVMMatchType<0>, llvm_anyint_ty, llvm_i32_ty, 
208                 llvm_i32_ty]>;
209 }
210
211 //===------------------------ Debugger Intrinsics -------------------------===//
212 //
213
214 def int_dbg_stoppoint    : Intrinsic<[llvm_void_ty,
215                                       llvm_i32_ty, llvm_i32_ty, 
216                                       llvm_descriptor_ty]>;
217 def int_dbg_region_start : Intrinsic<[llvm_void_ty, llvm_descriptor_ty]>;
218 def int_dbg_region_end   : Intrinsic<[llvm_void_ty, llvm_descriptor_ty]>;
219 def int_dbg_func_start   : Intrinsic<[llvm_void_ty, llvm_descriptor_ty]>;
220 def int_dbg_declare      : Intrinsic<[llvm_void_ty, llvm_descriptor_ty,
221                                                     llvm_descriptor_ty]>;
222
223 //===------------------ Exception Handling Intrinsics----------------------===//
224 //
225 def int_eh_exception     : Intrinsic<[llvm_ptr_ty]>;
226 def int_eh_selector_i32  : Intrinsic<[llvm_i32_ty, llvm_ptr_ty, llvm_ptr_ty,
227                                                    llvm_vararg_ty]>;
228 def int_eh_selector_i64  : Intrinsic<[llvm_i64_ty, llvm_ptr_ty, llvm_ptr_ty,
229                                                    llvm_vararg_ty]>;
230
231 def int_eh_typeid_for_i32 : Intrinsic<[llvm_i32_ty, llvm_ptr_ty]>;
232 def int_eh_typeid_for_i64 : Intrinsic<[llvm_i64_ty, llvm_ptr_ty]>;
233
234 def int_eh_return     : Intrinsic<[llvm_void_ty, llvm_i32_ty, llvm_ptr_ty]>,
235                         GCCBuiltin<"__builtin_eh_return">;
236
237 def int_eh_unwind_init: Intrinsic<[llvm_void_ty]>,
238                         GCCBuiltin<"__builtin_unwind_init">;
239
240 def int_eh_dwarf_cfa  : Intrinsic<[llvm_ptr_ty, llvm_i32_ty]>;
241
242 //===---------------- Generic Variable Attribute Intrinsics----------------===//
243 //
244 def int_var_annotation : Intrinsic<[llvm_void_ty, llvm_ptr_ty, llvm_ptr_ty,
245                                     llvm_ptr_ty, llvm_i32_ty], 
246                                     [], "llvm.var.annotation">;
247                                     
248 def int_annotation : Intrinsic<[llvm_anyint_ty, LLVMMatchType<0>, llvm_ptr_ty,
249                                 llvm_ptr_ty, llvm_i32_ty], 
250                                 [], "llvm.annotation">;
251
252 //===------------------------ Trampoline Intrinsics -----------------------===//
253 //
254 def int_init_trampoline : Intrinsic<[llvm_ptr_ty, llvm_ptr_ty, llvm_ptr_ty,
255                                      llvm_ptr_ty], []>,
256                           GCCBuiltin<"__builtin_init_trampoline">;
257
258 //===----------------------------------------------------------------------===//
259 // Target-specific intrinsics
260 //===----------------------------------------------------------------------===//
261
262 include "llvm/IntrinsicsPowerPC.td"
263 include "llvm/IntrinsicsX86.td"